Difficulty confusing butler around Oxford (7)
I believe the answer is:
trouble
'oxford' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'difficulty confusing butler around' is the wordplay.
'difficulty' becomes 'o' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'confusing' indicates anagramming the letters.
'around' means one lot of letters goes inside another.
'butler' is an anagram of 'truble'.
'o' inserted inside 'truble' is 'TROUBLE'.
Can you help me to learn more?
(Other definitions for trouble that I've seen before include "'A... shared is a... halved'" , "Conflict" , "Affliction" , "To make the effort" , "that follow witches' toil?" .)